Article ID: 124975, created on Mar 21, 2015, last review on Apr 13, 2016

  • Applies to:
  • Plesk 12.5 for Linux
  • Plesk 12.0 for Linux
  • Plesk 11.5 for Linux


Opening Plesk > Tools & Settings > License management shows the error:

    502 Bad Gateway


System could not read the key file in /etc/sw/keys/backup directory.


Rename the folder /etc/sw/keys/backup:

 mv /etc/sw/keys/backup/ /etc/sw/keys/backupold

Recreate the folder and set correct permissions:

# mkdir /etc/sw/keys/backup/
# chmod 2770 /etc/sw/keys/backup
# chown root.swkey-data /etc/sw/keys/backup

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